As to how to go about establishing a relationship with the god/esses, seems to me that it works much as his magick teacher advises the boy Merlin in Mary Stewart's excellent recounting of the Arthurian legend from Merlin's viewpoint.

From The Crystal Cave, "He who would go with the gods must first put himself in their path."

I would go back to the myths and legends that you loved most as a child when you were freer to hear what they had to say. Beyond that, trust your inner self to guide you.

And don't get yourself stuck on the kind of god you want. I know I've told this story many times, but I thought I wanted a Mr. Sensitive Ponytail type god while the god who kept tapping me on the shoulder was anything but! I finally said, "What do you want?" and I've never looked back. He was exactly the right god for me, I just didn't know it.

_________________Live a good life. If there are gods and they are just, then they will not care how devout you have been, but will welcome you based on the virtues you have lived by. If there are gods, but unjust, then you should not want to worship them. If there are no gods, then you will be gone, but will have lived a noble life that will live on in the memories of your loved ones. Marcus Aurelius